| CPC H05K 13/0815 (2018.08) [G06F 1/181 (2013.01); H05K 13/0812 (2018.08); Y10T 29/49131 (2015.01)] | 14 Claims |

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1. A correction apparatus comprising:
a fixture assembly comprising a first fixture and a second fixture coordinating with each other, wherein the first fixture is provided with a first alignment mark, the second fixture is provided with a second alignment mark, and alignment between the first fixture and the second fixture is achieved via the first alignment mark and the second alignment mark; and
an image acquisition assembly comprising a first image acquisition unit configured to acquire a first image of the first alignment mark of the first fixture and a second image acquisition unit configured to acquire second image of the second alignment mark of the second fixture, wherein a first image acquisition unit and the second image acquisition unit are aligned on a straight line between the first fixture and the second fixture, and the first image and the second image are used for acquiring an alignment parameter of the first alignment mark and the second alignment mark to correct the alignment between the first fixture and the second fixture.
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